var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

///=======路由信息 （接口地址）开始 存放在./routes目录下===========//
var indexRouter = require('./routes/index');
var loginServiceRouter = require('./routes/login');
var articleServiceRouter = require('./routes/article');
var inputServiceRouter = require('./routes/input');
var saveServiceRouter = require('./routes/save');
var informationRouter = require('./routes/information');
var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({extended: false}));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

// CheckToken
var CheckToken = require('./routes/checktoken');

// 配置跨域访问
app.all('*', function (req, res, next) {
    res.header("Access-Control-Allow-Origin", "*");
    res.header("Access-Control-Allow-Headers", "X-Requested-With");
    res.header("Access-Control-Allow-Methods", "*");
    res.header("X-Powered-By", ' 3.2.1');
    res.header("Content-Type", "application/json;charset=utf-8");
    res.header("Access-Control-Allow-Credentials", "true");
    res.header("Access-Control-Allow-Headers", "Content-Type,x-access-token");
    res.header("Access-Control-Expose-Headers", "*");
    if (req.method == "OPTIONS") {
        res.sendStatus(200);
    } else {
        next();
    }
});

//以api开头的路由添加token校验
app.use("/api/*", CheckToken);
app.use('/api/', indexRouter);
app.use('/api/articleService', articleServiceRouter);
app.use('/api/inputService', inputServiceRouter);
app.use('/api/saveService', saveServiceRouter);
app.use('/api/informationService', informationRouter)

// 不验证token的接口
app.use('/loginService', loginServiceRouter);
app.use('/', indexRouter);
app.use('/articleService', articleServiceRouter);
app.use('/inputService', inputServiceRouter);
app.use('/saveService', saveServiceRouter);
app.use('/informationService', informationRouter)

// catch 404 and forward to error handler
app.use(function (req, res, next) {
    // res.set('404.html')
    next(createError(404));
});

// error handler
app.use(function (err, req, res, next) {
    // set locals, only providing error in development
    res.locals.message = err.message;
    res.locals.error = req.app.get('env') === 'development' ? err : {};

    // render the error page
    res.status(err.status || 500);
    res.render('error');
});

module.exports = app;
